Shown with a cast-on count of 29 stitches.  

• Rows 1 and 15 (WS): K2, p1, k2, *p7, k2, p1, k2, repeat from *.
• Row 2: P2, yo, k1, yo, p2, *ssk, k3, k2tog, p2, yo, k1, yo, p2, repeat from * (multiple of 12 sts, plus 7).
• Rows 3 and 13: K2, p3, k2, *p5, k2, p3, k2, repeat from *.
• Row 4: P2, k1, yo, k1, yo, k1, p2, *ssk, k1, k2tog, p2, k1, yo, k1, yo, k1, p2, repeat from * (multiple of 12 sts, plus 9).
• Rows 5 and 11: K2, p5, k2, *p3, k2, p5, k2, repeat from *.
• Row 6: P2, k2, yo, k1, yo, k2, p2, *sl1-k2tog-psso, p2, k2, yo, k1, yo, k2, p2, repeat from * (multiple of 12 sts, plus 11).
• Row 7: K2, p7, k2, *p1, k2, p7, k2, repeat from *.
• Row 8: P2, *k7, p5, repeat from * to last 9 sts, k7, p2.
• Row 9: K2, *p7, k5, repeat from * to last 9 sts, p7, k2.
• Row 10: P2, ssk, k3, k2tog, p2, *yo, k1, yo, p2, ssk, k3, k2tog, p2, repeat from * (multiple of 12 sts, plus 9).
• Row 12: P2, ssk, k1, k2tog, p2, *k1, yo, k1, yo, k1, p2, ssk, k1, k2tog, p2, repeat from * (multiple of 12 sts, plus 7).
• Row 14: P2, sl1-k2tog-psso, p2, *k2, yo, k1, yo, k2, p2, sl1-k2tog-psso, p2, repeat from * (multiple of 12 sts, plus 5).
• Row 16: P5, *k7, p5, repeat from *.
• Row 17: K5, *p7, k5, repeat from *.